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HOOO / Weed-0.0084 / lib / Weed / FieldHelper.pm 

            

              
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package Weed::FieldHelper;
use Weed::Perl;
our $VERSION = '0.0082';
use UNIVERSAL 'isa';
use overload;
use Weed::Parse::Double 'double';
# NumVal($count, ...)
# returns a list of numbers as array ref with at most $count values
sub NumVal {
        my $count  = shift;
        my $values = [];
        foreach (@_) {
                my $ref = ref $_;
                if ($ref)
                {
                        if ( isa( $_, 'X3DField' ) )
                        {
                                my $value = $_->getValue;
                                if ( isa( $value, "X3DVector" ) )
                                {
                                        push @$values, @{ $value->getValue };
                                }
                                elsif ( isa( $value, "X3DRotation" ) )
                                {
                                        push @$values, @{ $value->getValue };
                                }
                                elsif ( isa( $_, 'SFImage' ) )
                                {
                                        X3DMessage->CouldNotAssign( 3, $_ );
                                }
                                elsif ( isa( $_, 'SFNode' ) )
                                {
                                        X3DMessage->CouldNotAssign( 3, $_ );
                                }
                                elsif ( isa( $_, 'X3DArrayField' ) )
                                {
                                        X3DMessage->CouldNotAssign( 3, $_ );
                                }
                                else
                                {    # Scalar
                                        push @$values, $value;
                                }
                        }
                        elsif ( isa( $_, "X3DVector" ) )
                        {
                                push @$values, @{ $_->getValue };
                        }
                        elsif ( isa( $_, "X3DRotation" ) )
                        {
                                push @$values, @{ $_->getValue };
                        }
                        elsif ( $ref eq 'ARRAY' )
                        {
                                push @$values, @{ NumVal( $count, @$_ ) };
                        }
                        else
                        {
                                my $numify = overload::Method( $_, "0+" );
                                push @$values, ref $numify ? &{$numify}($_) : double( \"$_" ) || 0;
                        }
                }
                elsif ( defined $_ )
                {
                        push @$values, $_;
                }
                else
                {
                        push @$values, 0;
                }
                last if @$values > $count;
        }
        splice @$values, $count if @$values > $count;
        return $values;
}
sub RotVal {
        return unless @_;
        # Rotation (rotation)
        return $_[0]->getValue if isa( $_[0], 'SFRotation' );
        return $_[0]           if isa( $_[0], "X3DRotation" );
        if ( 1 == @_ && isa( $_[0], 'ARRAY' ) )
        {
                # Rotation ([...])
                return RotVal( @{ $_[0] } )
        }
        else
        {
                my $value = NumVal( 6, @_ );
                return $value if @$value < 6;    # Rotation (axis, angle)
                return ( [ @$value[ 0, 1, 2 ] ], [ @$value[ 3, 4, 5 ] ] );    # Rotation (vector, vector)
        }
}
1;
__END__